TY - GEN
T1 - Influence of Ru on the microstructure of Ni-base single crystal superalloys
AU - Sun, Fei
AU - Zhang, Jianxin
N1 - Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2011
Y1 - 2011
N2 - Addition of Ru in Ni-base single crystal superalloys had been used to improve the elevated temperature strength and other multiple properties. Significant decreases in stacking fault energy of the γ phase and the volume fraction of γ′ phase are observed with the addition of Ru. As well as serving as an effective solid-solution strengthening element in high refractory content Ni-base single crystal superalloys, Ru additions are able to effectively strengthen both the γ and γ′ phases and suppress the formation of TCP phases. Due to the changes in the partitioning behavior of elements and the slight decrease in the supersaturation of refractory elements in γ phase associated with Ru additions, high temperature creep resistance and the microstructural stability of the alloy are improved remarkable. The influence of Ru on the microstructure of Ni-base single crystal superalloys is reviewed.
AB - Addition of Ru in Ni-base single crystal superalloys had been used to improve the elevated temperature strength and other multiple properties. Significant decreases in stacking fault energy of the γ phase and the volume fraction of γ′ phase are observed with the addition of Ru. As well as serving as an effective solid-solution strengthening element in high refractory content Ni-base single crystal superalloys, Ru additions are able to effectively strengthen both the γ and γ′ phases and suppress the formation of TCP phases. Due to the changes in the partitioning behavior of elements and the slight decrease in the supersaturation of refractory elements in γ phase associated with Ru additions, high temperature creep resistance and the microstructural stability of the alloy are improved remarkable. The influence of Ru on the microstructure of Ni-base single crystal superalloys is reviewed.
KW - Microstructure
KW - Ruthenium (Ru)
KW - Superalloys
KW - TCP phases
UR - http://www.scopus.com/inward/record.url?scp=80053057810&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80053057810&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMR.306-307.562
DO - 10.4028/www.scientific.net/AMR.306-307.562
M3 - Conference contribution
AN - SCOPUS:80053057810
SN - 9783037852040
T3 - Advanced Materials Research
SP - 562
EP - 571
BT - Emerging Focus on Advanced Materials
T2 - 1st International Congress on Advanced Materials 2011, AM2011
Y2 - 13 May 2011 through 16 May 2011
ER -